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WildChinoise
241
May 14, 2018
Welp, I've read about these the "clipping" or crackling noise problems when listening to bass at high volume levels on the Focal headphones. I wanted to hear it for myself so I loaded up a DB Meter app on my Pixel 2 XL, cued up a song and plugged in my Focal Elex.
Aloe Blacc - Ticking Bomb was a song referenced in a Head-Fi post that was brought up by a Google search. The bass line in this song is a really nice headphone test.
Listening to that song on Spotify at my preferred normal volume I did NOT hear any clipping/crackling. The DB Meter app measured 60-65 DB. Listening to that song at a painful (for me) volume level, I did NOT hear any clipping/crackling. This would be about 70-73 DB on the DB Meter app.

Raising the volume higher, I did hear the clipping/crackling on the Focal Elex at over 75 DB on the DB Meter app. Considering that volume level is very uncortable/painful for me, I guess I'm not surprised that I haven't run into the clipping/crackling noise earlier.
My Senn HD6XX are hanging on a hook right in front of me, so I tried them. On the Senn HD6XX I also heard clipping/cracking. The DB Meter was displaying 81-84 DB at that time. It also happened at the same places in the song.
FWIW, the Senn HD6XX needed a higher volume level than the Focal Elex to exhibit clipping. On both headphones, I personally would not normally be listening at these high volume levels, it's just too painful for MY ears.
I downloaded a CD rip of the track, just in case the Spotify copy was the problem. Same experience on the CD rip as with Spotiify track.
Caveat: I did not do any calibration of the DB Meter app, so the numers are NOT absolutely accurate. It's just a way to baseline the volume levels in a personal listening session.
I still like both headphones, for me the clipping occurs at painfully high volume levels, which are well outside my use cases.

I imagine that all headphones will clip if the volume is raised high enough. I might run the rest of my headphone collectioppn, or I might not. If I do, I'll update this post.
Moorekom
6
May 14, 2018
WildChinoiseI suspect different drivers have different tolerance levels. Even within elex. Some of them are sensitive when at normal levels. Mine is.
j_sco
5
May 15, 2018
WildChinoiseroughly the same experience here. using a cheap dBA meter and a tone generator, here are my results. (i set the tone generator to the test frequency, turn up the volume til it just barely clicks, then turn the tone generator to 1kHz and measure the volume with the meter.) 35Hz - 101dB 30Hz - 99dB 25Hz - 96dB 20Hz - 94dB 15Hz - 92dB 10Hz - 91dB it's not really a problem when using flat EQ. if i set it to just barely not clip at 10Hz (with a full volume generated tone), the volume level is loud enough that i probably couldn't listen to a whole song that way. if i set it to where it just barely doesn't clip at 20Hz, it's unlistenably loud. HOWEVER, i can definitely hit these limits at reasonable volumes if i use bass boost EQ.
in subjective terms, 30Hz is roughly the cutoff point for loud bass you can feel on these. at 30Hz you can turn it up loud enough that it feels a little uncomfortable and it still sounds pretty clean. below that, it loses the fundamental and just sounds like empty whooshing from mid to high volumes.
EDIT: looking at the drivers with a flashlight while playing tones just below clicking level, they're moving a LOT. pretty sure my numbers represent the drivers hitting physical excursion limits.
Danule
25
May 16, 2018
WildChinoisei went to tone generator website went to 30hz turned them up real high and have not heard any crakle. Nor have i heard any crackle on any bass heavy music. maybe some are defective.
jaydunndiddit
3262
May 16, 2018
WildChinoiseI had this issue with mine. If you play the song "DNA" by Kendrick Lamar (last half) or "Three Ralphs" by DJ Shadow, during each song it would clip/pop like mad. And this was just through my phone which I know wasn't overpowering them. It was much worse through one of my desktop amps and receiver. I got my replacement in last night and no issues with it at all. Played the songs just fine and sounded as it should. Swapping back and forth the problem is much more noticeable and definitely an issue.
Luckily, I'm glad I read I wasn't the only one with this issue else I may not have sent them in for replacement as I figured I was just pushing them too hard. Hopefully, others get their issues resolved as well since this is becoming pretty well documented at this point.
marcussmj
2
May 29, 2018
WildChinoiseThe app is not as accurate as a sound level meter.
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